The numbers were good news for the Lee campaign, but they weren't enough to declare victory. Another vote count will be taken Wednesday taking into account second choice votes.

None of the three big races in San Francisco had winners by the stroke of midnight, because none of the leaders got more than 50-percent of the vote.

The first round of returns showed George Gascon with 42-percent of the vote in the race of District Attorney. Ross Mirkarimi had a slight lead over Paul Miyamoto and Chris Cunnie in the early evening count in the race for sheriff. Click here for election results from San Francisco.

Here's how it works: In ranked choice voting, voters rank three choices on their ballot. If no candidate wins a majority among the first place votes cast, the second and third choices of the candidate who receives the fewest votes are distributed to the others. The process goes on until there's a winner with a majority. The San Francisco department of elections put together a tutorial.

RCV has been in play in San Francisco since 2004, but this election is the first time it would actually come into play in a high profile race.

Even before RCV had an impact on the City, two members of the Board of Supervisors proposed changing it back to the way it was prior to 2004. On Tuesday, a charter amendment was proposed in chambers that would have an initial election in September and runoff election in November if necessary. Any amendment would need the approval of six supervisors in order to get on the ballot.

Ranked choice voting elected Jean Quan over Don Perata as the mayor of Oakland even though Perata got more initial votes than Quan. What happened in Oakland proves that the person who gets the most votes may not win.

The election department says it will process all of the votes from all of the polling places before they go home on Election Day, but said there are ballots that can't be processed. Those include vote-by-mail ballots received on Election Day, provisional ballots cast at polling places, and ballots with write-in votes.

The department said it will take at least two weeks to process everything.